Home / 768,077,556.26-1,059,949,665.63-415,653,453.56

Finding the Fourth Proportional to 768,077,556.26, 1,059,949,665.63 and 415,653,453.56

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Solution

The fourth proportional to 768,077,556.26, 1,059,949,665.63 and 415,653,453.56 is: 573,603,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,077,556.26 : 1,059,949,665.63 = 415,653,453.56 : x
  2. Step 2: Convert to fraction form
    768,077,556.26/1,059,949,665.63 = 415,653,453.56/x
  3. Step 3: Cross multiply
    768,077,556.26x = 1,059,949,665.63 × 415,653,453.56
  4. Step 4: Simplify right side
    768,077,556.26x = 440,571,739,113,576,960
  5. Step 5: Solve for x
    x = 440,571,739,113,576,960/768,077,556.26
  6. Step 6: Final answer
    x = 573,603,193.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.